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Anyone recorded any amplified music with it yet?

I kinda want something like this, or the Zoom version, or an Audigo (which does remarkably well syncing up the mic and recording phone video in their app).
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Yes, the center position in the Instamic also uses multiple MEMS.  I think that's done to improve noise performance over what would be available from a single sensor that is physically small and thus inherently noisy.  Also means improved noise performance from sensors run in parallel applies only to mono mode, not stereo mode.  Since the unit does allow for 32bit float recording in stereo mode, post analysis should be able to show the actual dynamic range of the mono modes verses the stereo mode.

Do you know if it uses dual channel switching ADCs?  If it is, it might be operating like the Deity PR2 does, using the two ADCs in dual switching mode when recording in mono, while reverting to using them in single non-switching mode for stereo.  Can store output as 32bit float either way of course.
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The centre mic aperture of the Mic Pro is much wider than the apertures of the side mics.  And the wind muff that normally comes with the Mic Pro does not cover the side mics, which implies they are not used when the device is fulfilling its main role of a mono wireless mic.  The muff that does cover the sides is an optional extra (fortunately very cheap).  So, not that I know much about MEMS, but I strongly suspect that there is more than one MEMS capsule in the front facing mic aperture, which is a kind of grille rather than a series of holes.  If there was just one in there, and assuming I'm right that the side mics don't usually get used, then the variable polar patterns wouldn't be possible.  As I understand it, the Instamic has four capsules on top which are used in mono mode, and the capsules at the sides support stereo.  Perhaps the Mic Pro has kind of ripped off their design!  In terms of size, the Mic Pro seems to be a round version of the Instamic size, if that makes sense...
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Turns out it uses an array of 3 MEMS oriented Center / Left / Right without a fourth in back, opposite the center position.

Noting that this is essentially the same MEMS array geometry as used in the Instamic, but I presume the spacing between elements in the Mic Pro is greater since the device is physically larger.
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Recording Gear / Re: New OM System LS-P5
« Last post by PhxHorn on Today at 11:19:44 AM »
I needed a new stealth rig and found this thread. My Zoom H2 is falling apart and the Sony A10 is too expensive now, so I bought the Olympus LS P5.  First test last night at Rod Stewart using my Church CAFS mics and the P5's internal power (no battery pack).  These days every venue is being more restrictive with bags, and I needed something that would be unobtrusive with a clear bag.  I found a carrying pouch that fits it just fine.  https://www.amazon.com/dp/B0BF9KW1K4?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

I  used a Sharpie to cover up the words Record & Erase on the P5. I stuck it in the pouch mics-first and then left the pouch unzipped so security could see the bottom half of the unit. It was not a problem. As mentioned previously, the Bluetooth connection doesn't hold for all that long, so I paired the unit to my Android phone shortly before showtime.  When the music started, I made sure I had the recording levels dialed in.  I lost the connection after about 15 minutes, but I knew it would keep recording.  After the show, I just hit the Stop button.  Internal power worked just fine for the external mics, so no need for the battery pack.  Audio quality was just fine. 

Before the show, I tested the Olympus by placing it a foot in front of my stereo with the volume cranked.  The internal mics perform very well for high volume, though the audio quality is not quite as good as using externals. My old Zoom H2 really couldn't handle even medium-loud volume before distorting. Anyway, I think this will do the job for a stealth rig. I will say that the menu is confusing, and I still haven't got it figured out.  Sometimes you have to hit up or down to select a setting, and other times you hit left or right. I'm hoping I don't hit the wrong setting at some point. The Bluetooth instability is annoying, but all I need is for it to hold long enough to get the recording levels dialed in, so I can live with it.

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Thanks Peter.  I'll watch/listen when I can with headphones. Was just typing this up when you posted the message above..

Before searching out the website I assumed the Mic Pro incorporated four MEMS arrayed symmetrically around the puck-shaped device facing the four cardinal directions, thus providing the capability for simple beam forming in any horizontal direction.  Turns out it uses an array of 3 MEMS oriented Center / Left / Right without a fourth in back, opposite the center position.  Hmmm. I can see how they might derive forward-facing cardioid and "voice focus" patterns (the latter presumably supercardioid like), by using the side MEMS as virtual "rear vents". However the lack of complete front/back symmetry of the array makes me wonder how they derive a symmetrical forward facing fig-8.

Presumably stereo mode is Mid/Side and derives a decently symmetrical fig-8 Side channel pattern via the two MEMS placed symmetrically on opposite sides.  But how might it derive a forward-facing fig-8 without a MEMS in back opposite the center microphone?  Perhaps in the same way they derive the cardioid and "vocal focus" patterns, only using a still higher ratio from the two Side MEMS, but I would not expect a fig-8 pattern derived in that way to be particularly symmetrical.  Maybe it isn't.

I looked at the website and manual but was unable to find any info about the orientation of the mono directional patterns..  It's not made clear whether on-axis is indeed inline with the center microphone position or one of the side microphones.  Because of that I presume on-axis is in-line with the center microphone, otherwise I'd expect a mention somewhere that in order to use the directional patterns the device must be oriented sideways and include indication of which side is the "front". 
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Recording Gear / Using a Cell Phone for Recording
« Last post by firemt66 on Today at 10:59:06 AM »
Does the cellphone processes in the background creates its own floor noise that goes into your recording app?I use a sony ecm717 with a attenuator cable and the field recorder app from Germany. I've never really noticed floor noise when I was using my D8 send the M10 for many years. But since using a samsung phone, i've noticed floor noise more often. Are there things that I should make sure my phone is not running in the background Some sort of setting I could turn off if it is creating noise internally? Thanks for any thoughts!Scott
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I hadn't planned this but I have now done a quick YouTube presentation testing the mono polar patterns of the Mic Pro, which might interest "Gutbucket" if not anyone else.

https://youtu.be/PmB5LEH2Cc4

I am frankly a bit suspicious of how these polar patterns are created, in respect of this device anyway.  Maybe the Instamic goes about it differently, but it seems to me with the Mic Pro that it is chiefly concerned with voice recording in mono.  It is very good at behaving like "real" mics for voice, but the polar patterns have much less effect on music.  For instance, the most tightly focused setting (narrow pattern, shotgun imitation) discriminates against voice sounds other than right in front of the mic, but discriminates against music much less - and when the voice is heard from the front, music being played to one side starts sounding on axis, then further away if the voice stops.  Hmm.  This stuff might be very useful in certain voice recording situations but it may preclude use of a pair of these devices other than perhaps as spaced omnis, where it seems no actual processing of the signal is happening.
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Thanks for the step-by-step Phil! I'll try it out over the weekend..
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